3905137 has 4 divisors (see below), whose sum is σ = 3922420. Its totient is φ = 3887856.

The previous prime is 3905119. The next prime is 3905149. The reversal of 3905137 is 7315093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2686321 + 1218816 = 1639^2 + 1104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3905137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3905107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8298 + ... + 8755.

It is an arithmetic number, because the mean of its divisors is an integer number (980605).

Almost surely, 2^3905137 is an apocalyptic number.

It is an amenable number.

3905137 is a deficient number, since it is larger than the sum of its proper divisors (17283).

3905137 is a wasteful number, since it uses less digits than its factorization.

3905137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17282.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 3905137 is about 1976.1419483428. The cubic root of 3905137 is about 157.4751720333.

The spelling of 3905137 in words is "three million, nine hundred five thousand, one hundred thirty-seven".